Monitoring Device
Energy Meter
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M1-40/M3-40/M3-40-Dual | Energy Meter DDSU666 5(80)A | Energy Meter DTSU666 5(80)A | Energy Meter DDSU666-CT 200A/5A | Energy Meter DTSU666-CT 200A/5A
The SolaX Meter range—including M1-40, M3-40, and M3-40-Dual—is designed for easy integration into residential and commercial energy systems. With support for 1-phase and 3-phase wiring (3P3W/3P4W), and voltage compatibility from 220V to 415V, these meters offer a flexible plug-and-play CT solution.
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Product Advantage
SolaX Meters provide advanced remote configuration through the SolaXCloud, intelligent phase and CT direction adjustment, and a rapid 50ms refresh rate for high-precision data capture. Electrical isolation between strong and weak current paths ensures maximum safety.
Plug-and-play CT solution for easy installation
Supports remote settings via SolaXCloud APP
Intelligent phase sequence and CT direction adjustment, automatically resolving installation issues
50ms high refresh rate for more precise and faster control
Capable of monitoring power from both the grid and third-party inverters simultaneously
Separates strong and weak currents for enhanced security
Product Parameters
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M3-40-Dual-
ELECTRICAL SPECIFICATIONS
Power grid type 3P3W / 3P4W Rated voltage 3 × 57.7 / 100 V ~ 3 × 240 / 415 V Operating voltage 50 V ~ 480 V Current *A / 40 mA Frequency 45 Hz ~ 65 Hz Frequency tolerance 0.01 Hz Power consumption < 1.2 W -
MEASUREMENT & ACCURACY
Recommended CT specification 100 A / 40 mA, 200 A / 40 mA, 400 A / 40 mA, 600 A / 40 mA, 1000 A / 40 mA, 1500A / 40mA, 2000A / 40mA Measurement accuracy class Voltage and current: Class 0.5, Active power: Class 1,
Reactive power: Class 2
Resolution requirement Active power: 0.1 W, Frequency: 0.001 Hz -
ENVIRONMENTAL ADAPTABILITY
Operating temperature -40°C~70°C Operating humidity ≤95% RH (non-condensing) Operating altitude < 4000 m -
MECHANICAL & INSTALLATION
Dimensions (W × H × D) 72 mm × 100 mm × 65.5 mm Degree of protection IP20
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M3-40
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ELECTRICAL SPECIFICATIONS
Power grid type 3P3W / 3P4W Rated voltage 3 × 220 / 380 V ~ 3 × 240 / 415 V Operating voltage 100 V ~ 280 V Current *A / 40 mA Frequency 45 Hz ~ 65 Hz Frequency tolerance 0.01 Hz Power consumption < 1.5 W -
MEASUREMENT & ACCURACY
Recommended CT specification 100 A / 40 mA, 200 A / 40 mA, 400 A / 40 mA, 600 A / 40 mA, 1000 A / 40 mA, 1500A / 40mA, 2000A / 40mA Measurement accuracy class Voltage and current: Class 0.5, Active power: Class 1,
Reactive power: Class 2
Resolution requirement Active power: 0.1 W, Frequency: 0.001 Hz -
ENVIRONMENTAL ADAPTABILITY
Operating temperature -40°C~70°C Operating humidity ≤95% RH (non-condensing) Operating altitude < 4000 m -
MECHANICAL & INSTALLATION
Dimensions (W × H × D) 45 mm × 100 mm × 65.5 mm Degree of protection IP20
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M1-40
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ELECTRICAL SPECIFICATIONS
Power grid type 1P2W Rated voltage 220 V ~ 240 V Operating voltage 100 V~288 V Current *A / 40 mA Frequency 45 Hz ~ 65 Hz Frequency tolerance 0.01 Hz Power consumption < 1.2 W -
MEASUREMENT & ACCURACY
Recommended CT specification 100 A / 40 mA, 200 A / 40 mA, 400 A / 40 mA, 600 A / 40 mA, 1000 A / 40 mA, 1500A / 40mA, 2000A / 40mA Measurement accuracy class Voltage and current: Class 0.5, Active power: Class 1,
Reactive power: Class 2
Resolution requirement Active power: 0.1 W, Frequency: 0.001 Hz -
ENVIRONMENTAL ADAPTABILITY
Operating temperature -40°C~70°C Operating humidity ≤95% RH (non-condensing) Operating altitude < 4000 m -
MECHANICAL & INSTALLATION
Dimensions (W × H × D) 18 mm × 100 mm × 65.5 mm Degree of protection IP20
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Data Download
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Datasheet
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User Manual
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Quick Installation Guide
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